CN220930100U - Crane transfer case with oil leakage prevention structure - Google Patents
Crane transfer case with oil leakage prevention structure Download PDFInfo
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- CN220930100U CN220930100U CN202323074901.9U CN202323074901U CN220930100U CN 220930100 U CN220930100 U CN 220930100U CN 202323074901 U CN202323074901 U CN 202323074901U CN 220930100 U CN220930100 U CN 220930100U
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- 230000002265 prevention Effects 0.000 title claims description 21
- 239000003921 oil Substances 0.000 claims description 44
- 238000007789 sealing Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a crane transfer case with an oil leakage preventing structure, which comprises a machine body, an input shaft, a first gear, a second gear, a first intermediate shaft, a third gear, a fourth gear, a second intermediate shaft, a fifth gear, a planet wheel, a sun wheel and an output shaft, wherein the input shaft, the first intermediate shaft, the second intermediate shaft and the output shaft are sequentially arranged in the machine body from top to bottom, the first gear and the second gear are sleeved on the input shaft, the third gear and the fourth gear are sleeved on the first intermediate shaft, the fifth gear is sleeved on the second intermediate shaft, the sun wheel is sleeved on the output shaft, the first gear is meshed with the third gear, the second gear is meshed with the fourth gear, the third gear is meshed with the fifth gear, the fifth gear is connected with the planet wheel through an inner gear ring, and the planet wheel is meshed with the sun wheel. The transfer case front axle output assembly is provided with the sealed differential lock, so that the passing performance of the whole vehicle is ensured when wheels slip.
Description
Technical Field
The utility model relates to the technical field of crane power transmission, in particular to a crane transfer case with an oil leakage prevention structure.
Background
With the development of national economy, the sales of the automobile cranes in China are increased year by year, and the market demands of the large-tonnage cranes are catalyzed by construction projects such as large petrochemical industry, wind power, thermal power and the like. The development time of the hundred-ton automobile crane in China is several years, but the development of main key parts required by the large-tonnage crane obviously falls behind the market demand. The output end of the transfer case for the crane is usually connected with an end face tooth flange, and is centered with the inner side of the transfer case by the tooth side, and an oil seal is arranged on the end face tooth flange, so that oil leakage in the oil seal and the flange is easily caused due to reasons such as machining precision and installation, and the efficiency and the service life of the whole machine are influenced.
Disclosure of Invention
The utility model aims to overcome the defects and provide the crane transfer case with the oil leakage prevention structure, wherein the transfer case front axle output assembly is provided with the differential lock with tightness, so that the passing performance of the whole vehicle is ensured when wheels slip.
The purpose of the utility model is realized in the following way:
The utility model provides a crane transfer case that possesses leak protection oil structure, it includes organism, input shaft, first gear, second gear, first jackshaft, third gear, fourth gear, second jackshaft, fifth gear, planet wheel, sun gear and output shaft, set gradually input shaft, first jackshaft, second jackshaft and output shaft from top to bottom in the organism, set up first gear and second gear on the input shaft, set up third gear and fourth gear on the first jackshaft, set up fifth gear on the second jackshaft, set up the sun gear on the output shaft, first gear and third gear meshing, second gear and fourth gear meshing, third gear and fifth gear meshing, the fifth gear links to each other with the planet wheel through the ring gear, the planet wheel meshes with the sun gear;
The front end of the output shaft is provided with a spline shaft, the spline shaft is fixed through a front end locking nut, a first O-shaped sealing ring is arranged between the front end locking nut and the output shaft, a second O-shaped sealing ring is arranged between the front end locking nut and the spline shaft, and a third O-shaped sealing ring is arranged between the spline shaft and a bearing at the front end of the output shaft;
The output shaft is still connected with differential lock, differential lock includes pneumatic shift fork lid, pneumatic shift fork pole, pneumatic shift fork board, cylinder guiding band and pulls out the fork seat, it sets up on the output shaft to pull out the fork seat, pulls out and sets up pneumatic shift fork board on the fork seat, and pneumatic shift fork board passes through pneumatic shift fork pole and connects pneumatic shift fork lid, set up compression spring in the pneumatic shift fork pole, the outside of pneumatic shift fork pole is equipped with cylinder guiding band and fourth O type sealing washer.
The utility model provides a possess hoist transfer case of leak protection oil structure, the front end of first jackshaft is equipped with first middle lid that permeates, leave the lubrication pump space between first middle lid and the first jackshaft, the lubrication pump space is equipped with gear pump and oil pump seat, be equipped with first adjusting ring between the bearing frame of oil pump seat and first jackshaft front end.
The utility model provides a crane transfer case that possesses leak protection oil structure, the front end of input shaft establishes the input flange through lock nut cover, the input flange is equipped with the input through cover outward, the input through cover is fixed on the organism.
A crane transfer case with an oil leakage prevention structure is characterized in that an input blank cap is arranged at the rear end of an input shaft and fixed on a machine body.
A gear shifting gear ring is arranged between the first gear and the second gear, and the gear shifting gear ring is sleeved on an input shaft.
The utility model provides a possess hoist transfer case of leak protection oil structure, the front end of second jackshaft is equipped with the little axle of second spline, the front end outside of second jackshaft 8 is equipped with the second intermediate perspective lid, the terminal surface of second intermediate perspective lid is equipped with the baffle.
A crane transfer case with an oil leakage prevention structure is characterized in that a spline shaft is arranged at the front end of an output shaft, a front output transparent cover is arranged outside the spline shaft, and two layers of oil seals are arranged between the front output transparent cover and the spline shaft.
A rear output spline shaft is connected to the rear end of an output shaft, a rear output through cover is connected to the outer portion of the rear output spline shaft through a rear flange, and the rear output through cover is arranged on a machine body.
A crane transfer case with an oil leakage prevention structure is characterized in that a planet wheel is arranged on a planet carrier through a planet shaft, and the planet carrier is connected with a rear output spline shaft through a bearing.
A crane transfer case with an oil leakage prevention structure is characterized in that a first middle blank cap is arranged at the rear end of a first middle shaft.
Compared with the prior art, the utility model has the beneficial effects that:
The transfer case interaxial differential mechanism adopts the cylindrical gear planetary transmission device, the middle two stages are idler gears, the diameters of gears of all stages are greatly reduced, full-time four-wheel drive is realized, front output torque is output from a sun gear, rear output torque is output from a gear ring support shaft, and the transfer case interaxial differential mechanism is compact in structure, short in axial size, small in size and capable of transmitting larger torque. According to the positioning of the spline flange and the spline shaft, the transition fit radial positioning of 1 part is increased, the coaxiality of the spline flange oil seal gear is ensured, and the oil seal gear is prevented from being different; the spline flange, the spline shaft and the round nut are provided with 3O-shaped rings, so that the risk of oil leakage inside the flange is prevented to the greatest extent.
When wheels slip, the shifting fork and the tooth sleeve are driven by the operating cylinder, the sun gear shaft and the planet carrier are connected into a whole, and the differential is locked. When the wheels slip, the shift fork and the gear sleeve are driven by the operating cylinder to connect the sun gear shaft and the planet carrier into a whole to lock the differential mechanism. The differential lock is operated by pneumatic, an inner layer and an outer layer of sealing are arranged at the position, an O-shaped ring is additionally arranged in the direction of the inner part of the box body, the inner sealing can be close, a plane sealing glue is used on the outer end cover, the maximum filling gap can reach 0.25mm, and the temperature is resistant to-55-150 ℃.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural diagram of an output terminal of the present utility model.
Fig. 3 is a schematic structural view of the differential lock of the present utility model.
Fig. 4 is a schematic view of the housing of the case of the present utility model.
Wherein:
The engine block 1, the input shaft 2, the input flange 21, the input through cover 22, the input blank cover 23, the gear shifting ring 24, the first gear 3, the second gear 4, the first intermediate shaft 5, the first intermediate through cover 51, the gear pump 52, the oil pump seat 53, the first adjusting ring 54, the first intermediate blank cover 55, the first spline small shaft 56, the third gear 6, the fourth gear 7, the second intermediate shaft 8, the second intermediate through cover 81, the second spline small shaft 82, the baffle 83, the second adjusting ring 84, the fifth gear 9, the planet wheel 10, the planet shaft 101, the planet carrier 102, the ring gear 103, the sun gear 11, the output shaft 12, the spline shaft 121, the front output through cover 122, the rear output spline shaft 123, the rear flange 124, the oil seal 126, the first O-ring 127, the second O-ring 128, the third O-ring 129, the differential lock 13, the pneumatic fork cover 131, the pneumatic fork 132, the pneumatic fork plate 133, the cylinder guide 134, the fork seat 135, the compression spring 136, and the fourth O-ring 137.
Description of the embodiments
In order to better understand the technical solution of the present utility model, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present utility model, but are merely examples of embodiments that may be employed by the present utility model. It should be noted that, the description herein of the positional relationship of the components, such as the component a being located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Example 1
Referring to fig. 1-4, fig. 1 depicts a schematic structural diagram of a crane transfer case with an oil leakage prevention structure. As shown in the figure, the crane transfer case with the oil leakage prevention structure comprises a machine body 1, an input shaft 2, a first gear 3, a second gear 4, a first intermediate shaft 5, a third gear 6, a fourth gear 7, a second intermediate shaft 8, a fifth gear 9, a planet wheel 10, a sun wheel 11 and an output shaft 12, wherein the input shaft 2, the first intermediate shaft 5, the second intermediate shaft 8 and the output shaft 12 are sequentially arranged in the machine body 1 from top to bottom, the input shaft 2 is sleeved with the first gear 3 and the second gear 4, the first intermediate shaft 5 is sleeved with the third gear 6 and the fourth gear 7, the second intermediate shaft 8 is sleeved with the fifth gear 9, the output shaft 12 is sleeved with the sun wheel 11, the first gear 3 is meshed with the third gear 6, the second gear 4 is meshed with the fourth gear 7, the third gear 6 is meshed with the fifth gear 9, the fifth gear 9 is connected with the planet wheel 10 through an inner gear 103, and the sun wheel 11 is meshed with the sun wheel 11 to form a cylindrical gear transmission device.
The front end of the input shaft 2 is sleeved with an input flange 21 through a lock nut, an input through cover 22 is arranged outside the input flange 21, the input through cover 22 is fixed on the machine body 1, the rear end of the input shaft 2 is provided with an input blank cover 23, and the input blank cover 23 is fixed on the machine body 1; a gear shifting gear ring 24 is arranged between the first gear 3 and the second gear 4, and the gear shifting gear ring 24 is sleeved on the input shaft 2; a baffle ring is arranged between the first gear 3 and a bearing seat at the front end of the input shaft 2, and a baffle ring is arranged between the second gear 4 and a bearing seat at the rear end of the input shaft 2.
The front end of the first intermediate shaft 5 is provided with a first spline small shaft 56, the outside of the front end of the first intermediate shaft 5 is provided with a first intermediate transparent cover 51, a lubricating oil pump space is reserved between the first intermediate transparent cover 51 and the first intermediate shaft 5, the lubricating oil pump space is provided with a gear pump 52 and an oil pump seat 53, a first adjusting ring 54 is arranged between the oil pump seat 53 and a bearing seat at the front end of the first intermediate shaft 5, and the rear end of the first intermediate shaft 5 is provided with a first intermediate blank cap 55.
The front end of the second intermediate shaft 8 is provided with a second spline small shaft 82, the outside of the front end of the second intermediate shaft 8 is provided with a second intermediate transparent cover 81, and the end face of the second intermediate transparent cover 81 is provided with a baffle 83; a second adjusting ring 84 is arranged between the second middle transparent cover 81 and the bearing seat at the front end of the second middle shaft 8.
The front end of the output shaft 12 is provided with a spline shaft 121, the spline shaft 121 is fixed through a front end locking nut, a first O-shaped sealing ring 127 is arranged between the front end locking nut and the output shaft 12, a second O-shaped sealing ring 128 is arranged between the front end locking nut and the spline shaft 121, and a third O-shaped sealing ring 129 is arranged between the spline shaft 121 and a bearing at the front end of the output shaft 12; a front output transparent cover 122 is arranged outside the spline shaft 121, and two layers of oil seals 126 are arranged between the front output transparent cover 122 and the spline shaft 121; the rear end of the output shaft 12 is connected with a rear output spline shaft 123, the outer part of the rear output spline shaft 123 is connected with a rear output through cover 125 through a rear flange 124, and the rear output through cover 125 is arranged on the machine body 1; the planet wheels 10 are mounted on a planet carrier 102 by means of a planet shaft 101, the planet carrier 102 being connected to a rear output spline shaft 123 by means of bearings. A block is provided between the carrier 102 and the sun gear 11.
The output shaft 12 is also connected with a differential lock 13, the differential lock 13 comprises a pneumatic shifting fork cover 131, a pneumatic shifting fork rod 132, a pneumatic shifting fork plate 133, a cylinder guide belt 134 and a shifting fork seat 135, the shifting fork seat 135 is arranged on the output shaft 12, the pneumatic shifting fork plate 133 is arranged on the shifting fork seat 135, the pneumatic shifting fork plate 133 is connected with the pneumatic shifting fork cover 131 through the pneumatic shifting fork rod 132, a compression spring 136 is arranged in the pneumatic shifting fork rod 132, and the cylinder guide belt 134 and a fourth O-shaped sealing ring 137 are arranged outside the pneumatic shifting fork rod 132.
Working principle:
The utility model provides a crane transfer case with an oil leakage prevention structure, which improves the design of a speed reducer structure, and the inter-axle differential mechanism adopts a cylindrical gear planetary transmission device to realize full-time four-wheel drive, wherein the front output torque is output from a sun gear, and the rear output torque is output from a gear ring support shaft; according to the positioning of the spline flange and the spline shaft, the transition fit radial positioning of 1 part is increased, the coaxiality of the spline flange oil seal gear is ensured, and the oil seal gear is prevented from being different; the spline flange, the spline shaft and the round nut are provided with 3O-shaped rings, so that the risk of oil leakage inside the flange is prevented to the greatest extent.
The front output structure design of the utility model: the front output of the transfer case is output by a sun gear of the differential mechanism, and in order to ensure the passing performance of the whole vehicle when wheels slip, a front axle output assembly of the transfer case is provided with a differential lock. When the wheels slip, the shifting fork and the gear sleeve are driven by operating the air cylinder, the sun gear shaft and the planet carrier are connected into a whole, and the differential is locked. The differential lock is operated pneumatically, the sealing is particularly critical, an O-shaped ring seal is additionally arranged in the inner direction of the box body, the Letai 518 plane sealant is used on the outer end cover, the maximum filling gap can reach 0.25mm, the temperature is resistant to-55-150 ℃, and the inner seal can be ensured to be close.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (10)
1. A crane transfer case with an oil leakage prevention structure is characterized in that: the novel planetary gear transmission device comprises a machine body (1), an input shaft (2), a first gear (3), a second gear (4), a first intermediate shaft (5), a third gear (6), a fourth gear (7), a second intermediate shaft (8), a fifth gear (9), a planetary gear (10), a sun gear (11) and an output shaft (12), wherein the input shaft (2), the first intermediate shaft (5), the second intermediate shaft (8) and the output shaft (12) are sequentially arranged in the machine body (1) from top to bottom, the first gear (3) and the second gear (4) are sleeved on the input shaft (2), the third gear (6) and the fourth gear (7) are sleeved on the first intermediate shaft (5), the fifth gear (9) is sleeved on the second intermediate shaft (8), the sun gear (11) is sleeved on the output shaft (12), the first gear (3) is meshed with the third gear (6), the second gear (4) is meshed with the fourth gear (7), the third gear (6) is meshed with the fifth gear (9), and the fifth gear (103) is meshed with the planetary gear (10) through the planetary gear (10);
The front end of the output shaft (12) is provided with a spline shaft (121), the spline shaft (121) is fixed through a front end locking nut, a first O-shaped sealing ring (127) is arranged between the front end locking nut and the output shaft (12), a second O-shaped sealing ring (128) is arranged between the front end locking nut and the spline shaft (121), and a third O-shaped sealing ring (129) is arranged between the spline shaft (121) and a bearing at the front end of the output shaft (12);
The output shaft (12) is also connected with a differential lock (13), the differential lock (13) comprises a pneumatic shifting fork cover (131), a pneumatic shifting fork rod (132), a pneumatic shifting fork plate (133), a cylinder guide belt (134) and a shifting fork seat (135), the shifting fork seat (135) is arranged on the output shaft (12), the pneumatic shifting fork plate (133) is arranged on the shifting fork seat (135), the pneumatic shifting fork plate (133) is connected with the pneumatic shifting fork cover (131) through the pneumatic shifting fork rod (132), a compression spring (136) is arranged in the pneumatic shifting fork rod (132), and the cylinder guide belt (134) and a fourth O-shaped sealing ring (137) are arranged outside the pneumatic shifting fork rod (132).
2. The crane transfer case with an oil leakage prevention structure according to claim 1, wherein: the front end of the first intermediate shaft (5) is provided with a first intermediate transparent cover (51), a lubricating oil pump space is reserved between the first intermediate transparent cover (51) and the first intermediate shaft (5), the lubricating oil pump space is provided with a gear pump (52) and an oil pump seat (53), and a first adjusting ring (54) is arranged between the oil pump seat (53) and a bearing seat at the front end of the first intermediate shaft (5).
3. The crane transfer case with an oil leakage prevention structure according to claim 1, wherein: the front end of the input shaft (2) is sleeved with an input flange (21) through a lock nut, an input transparent cover (22) is arranged outside the input flange (21), and the input transparent cover (22) is fixed on the machine body (1).
4. The crane transfer case with an oil leakage prevention structure according to claim 1, wherein: the rear end of the input shaft (2) is provided with an input blank cap (23), and the input blank cap (23) is fixed on the machine body (1).
5. The crane transfer case with an oil leakage prevention structure according to claim 1, wherein: a gear shifting gear ring (24) is arranged between the first gear (3) and the second gear (4), and the gear shifting gear ring (24) is sleeved on the input shaft (2).
6. The crane transfer case with an oil leakage prevention structure according to claim 1, wherein: the front end of the second intermediate shaft (8) is provided with a second spline small shaft (82), the outer part of the front end of the second intermediate shaft (8) is provided with a second intermediate transparent cover (81), and the end face of the second intermediate transparent cover (81) is provided with a baffle plate (83).
7. The crane transfer case with an oil leakage prevention structure according to claim 1, wherein: the front end of the output shaft (12) is provided with a spline shaft (121), the outside of the spline shaft (121) is provided with a front output transparent cover (122), and two layers of oil seals (126) are arranged between the front output transparent cover (122) and the spline shaft (121).
8. The crane transfer case with an oil leakage prevention structure according to claim 1, wherein: the rear end of the output shaft (12) is connected with a rear output spline shaft (123), the outer part of the rear output spline shaft (123) is connected with a rear output transparent cover (125) through a rear flange (124), and the rear output transparent cover (125) is arranged on the machine body (1).
9. The crane transfer case with an oil leakage prevention structure according to claim 8, wherein: the planet wheel (10) is arranged on a planet carrier (102) through a planet shaft (101), and the planet carrier (102) is connected with a rear output spline shaft (123) through a bearing.
10. The crane transfer case with an oil leakage prevention structure according to claim 1, wherein: the rear end of the first intermediate shaft (5) is provided with a first intermediate blank cap (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323074901.9U CN220930100U (en) | 2023-11-15 | 2023-11-15 | Crane transfer case with oil leakage prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323074901.9U CN220930100U (en) | 2023-11-15 | 2023-11-15 | Crane transfer case with oil leakage prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220930100U true CN220930100U (en) | 2024-05-10 |
Family
ID=90967137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323074901.9U Active CN220930100U (en) | 2023-11-15 | 2023-11-15 | Crane transfer case with oil leakage prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220930100U (en) |
-
2023
- 2023-11-15 CN CN202323074901.9U patent/CN220930100U/en active Active
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